I would err towards teaching aids. Though they likely gained some ceremonial usage from that. Almost all are likely lost to time. We only see the odd exceptions put in difficult to reach places.
I personally like the idea that it was a teacher desperately practicing, in the back of the cave, where no one would likely see it.
I wonder if these things were more like warning signs than art. “Here be lions.”
I would err towards teaching aids. Though they likely gained some ceremonial usage from that. Almost all are likely lost to time. We only see the odd exceptions put in difficult to reach places.
I personally like the idea that it was a teacher desperately practicing, in the back of the cave, where no one would likely see it.